CN107304746A - Wind generating set and operation control method and device thereof - Google Patents
Wind generating set and operation control method and device thereof Download PDFInfo
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- CN107304746A CN107304746A CN201610248976.XA CN201610248976A CN107304746A CN 107304746 A CN107304746 A CN 107304746A CN 201610248976 A CN201610248976 A CN 201610248976A CN 107304746 A CN107304746 A CN 107304746A
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- wind power
- power generating
- generating set
- blower fan
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 claims description 117
- 238000012545 processing Methods 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 15
- 238000005276 aerator Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000011217 control strategy Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 20
- 238000012544 monitoring process Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
- F03D7/048—Automatic control; Regulation by means of an electrical or electronic controller controlling wind farms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
- F03D7/047—Automatic control; Regulation by means of an electrical or electronic controller characterised by the controller architecture, e.g. multiple processors or data communications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/82—Forecasts
- F05B2260/821—Parameter estimation or prediction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/321—Wind directions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The embodiment of the invention provides a wind generating set and an operation control method and device thereof. The method comprises the following steps: acquiring data of the current orientation of the engine room of the wind generating set; and controlling the running equipment of the wind generating set according to the data of the orientation, the position data of each wind generating set in the wind power plant and the wind condition data measured from each wind generating set so as to improve the generating capacity of the wind generating set. According to the current orientation of the engine room of the wind generating set, the position data of each wind generating set in the wind power plant and the wind condition data measured by each wind generating set, accurate control strategy adjustment is carried out on the operating equipment of the wind generating set in advance, and the generating capacity of the wind generating set is improved.
Description
Technical field
The present invention relates to wind generating technology, more particularly to a kind of wind power generating set and its operation control
Method and apparatus processed.
Background technology
With gradually expanding for wind power generating set scale and being gradually improved for unit safety protection,
The power generation performance of raising wind power generating set, the generated energy and availability of such as wind-driven generator,
The maximum energy and economic benefit are obtained, must problems faced as wind driven generator technology.
In the control of wind power generating set, the judgement to wind speed is to determine wind power generating set control
One of factor of effect.To the Accurate Prediction of wind speed, contribute to the control plan to wind power generating set
Slightly carry out perfect, obtain more excellent control effect.
At present, the wind speed that the master control system of wind power generating set is still passively detected to it mostly
Change or wind vector are controlled Developing Tactics and driftage.For example, when the inspection of this wind power generating set
Measure after wind speed change, master control system just starts control pitch-controlled system and carries out becoming oar operation so that oar
Leaf becomes oar and lags behind wind speed change, causes the rotary speed unstabilization of impeller to be determined, causes certain generated energy to damage
Lose.For another example after wind vector is detected when this wind power generating set, master control system just starts
Control yaw system is gone off course so that yaw maneuver lags behind wind vector so that become in wind direction
Wheel speed is substantially reduced after change, also results in certain generated energy loss.
However, with the increase of wind-driven generator pool-size, the generated energy caused by longtime running is damaged
Mistake is immeasurable.Therefore, needed in the control strategy of wind power generating set to air speed value and
Wind direction value is predicted, and oar and active yawing are actively become with realize unit.
The current prediction to wind power generating set wind speed and direction mainly has three kinds of modes：
(1) air speed value and wind direction value measured using anemometer tower.Due to anemometer tower and blower fan distance compared with
The limited amount of remote and anemometer tower, its air speed value measured and wind direction value can only be used as reference, it is impossible to
Data needed for being controlled as wind power generating set.In addition, anemometer tower and each wind power generating set
The distance between it is unknown, it is difficult to accurately hold in advance control or go off course opportunity.Importantly,
Because the quantity of anemometer tower is few, it is easy on direction and the coincidence of multiple wind power generating sets, wind
Turbulent flow can cause large effect and deviation to air speed value and wind direction value.Furthermore, when wind power plant position
When mountain region, because the height of each wind power generating set is different, the wind speed measured by anemometer tower
With wind direction value can not as all wind power generating sets control foundation.
(2) air speed value prediction is carried out using weather forecast, but such a prediction mode blindness is stronger,
The air speed value predicted is very inaccurate.
(3) air speed value based on big data and the prediction of wind direction value.This prediction mode needs to utilize length
The historical data of phase operation, data volume and quality to historical data are all required, and can only be pre-
Survey certain probability, it is impossible to reflect real air speed value and wind direction value.Meanwhile, big data is contained
Too many historical data, for wind power generating set control, it is to wind speed, the prediction of wind direction value
With a certain degree of hysteresis quality.
The content of the invention
It is an object of the present invention to provide a kind of wind power generating set and its progress control method are with setting
It is standby, control is performed with operational outfit autonomous, in advance to wind power generating set, wind-power electricity generation is improved
The generated energy of unit.
There is provided a kind of progress control method of wind power generating set, institute according to an aspect of the present invention
The method of stating includes：Obtain the data of the current direction of cabin of this wind power generating set；According to described
The position data of each wind power generating set and from each wind-power electricity generation in the data of direction, wind power plant
The wind regime data that unit is measured perform control to the operational outfit of described wind power generating set, to carry
The generated energy of high described wind power generating set.
Alternatively, the position data of each wind power generating set is expressed as with described in the wind power plant
This wind power generating set limit, using from the ray of the predetermined angle direction of the limit as the pole of pole axis
Coordinate data.
Alternatively, methods described also includes：Receive the air speed value measured from other wind power generating sets
With wind direction value, by the polar coordinates of each wind power generating set in the wind power plant with from wind each described
The air speed value and wind direction value that power generator group is measured associatedly are stored.
Alternatively, the data according to the direction, in wind power plant each wind power generating set position
Put data and the wind regime data that measure from each wind power generating set are to described wind power generating set
Operational outfit perform control processing include：The chosen position wind consistent with the current direction
Power generator group is used as current forward direction blower fan；According to the position data of the forward direction blower fan, from institute
The operation of the air speed value and/or wind direction value and described wind power generating set that are measured before stating to blower fan
State performs control to the operational outfit of the wind power generating set.
According to another aspect of the present invention there is provided a kind of operation control device of wind power generating set,
The equipment includes：Towards determining unit, cabin for obtaining this wind power generating set is current
The data of direction；Control unit is run, for each wind in the data according to the direction, wind power plant
The position data of power generator group and the wind regime data that measure from each wind power generating set are to described
The operational outfit of this wind power generating set performs control, to improve the hair of described wind power generating set
Electricity.
Alternatively, the position data of each wind power generating set is expressed as with described in the wind power plant
This wind power generating set limit, using from the ray of the predetermined angle direction of the limit as the pole of pole axis
Coordinate data.
Alternatively, the equipment also includes：Parameter receiving unit, for receiving from other wind-force hair
Air speed value and wind direction value that group of motors is measured；Parameter storage unit, for will in the wind power plant it is each
The polar coordinates of individual wind power generating set and the air speed value measured from wind power generating set each described and wind
Associatedly stored to value.
Alternatively, the operation control unit includes：Forward direction blower fan chooses unit, for choosing position
The wind power generating set consistent with the current direction is put as current forward direction blower fan；The fortune
Row control unit is used for what is measured according to the position data of the forward direction blower fan, from the forward direction blower fan
The running status of air speed value and/or wind direction value and described wind power generating set is sent out the wind-force
The operational outfit of group of motors performs control.
According to another aspect of the present invention, also providing a kind of includes the wind-force of foregoing operation control device
Generating set.
The progress control method of the wind power generating set provided according to embodiments of the present invention, using described
The operation control device and wind power generating set of method, pass through the machine according to this wind power generating set
The position data of each wind power generating set and sent out in the current direction in cabin, wind power plant from each wind-force
The wind regime data that group of motors is measured are performed accurately in advance to the operational outfit of described wind power generating set
Control strategy adjustment, improve the generated energy of described wind power generating set.Can be by from each wind
The wind regime data that power generator group is measured in real time carry out wind regime variation prediction, while data processing amount phase
To low, it is to avoid because rely on a large amount of historical datas carry out the hysteresis quality of wind regime variation predictions, complexity with
And inaccuracy.In addition, its realization need not increase additional hardware detection device, save and run into
This.
By preceding solution, when wind power generating set is in running status, in wind speed cataclysm
In the case of, can also overspeed protection be performed to wind power generating set, ensured the service life of unit.
In addition, by preceding solution, when wind power generating set is in stopped status, may be used also
Standby startup is carried out in advance, is gone off course to wind etc., to enter working condition as early as possible, is effectively improved
The generated energy of described wind power generating set.
Brief description of the drawings
Fig. 1 is to show showing according to the wind power plant intelligent cluster control system of the present general inventive concept
Example property topological diagram；
Fig. 2 is to show to set sensor in wind power generating set according to the present general inventive concept
Illustrative diagram；
Fig. 3 is to show the polar coordinates of wind power generating set and generation in the wind power plant according to the present invention
Virtual radar schematic diagram；
Fig. 4 is the operation control for the wind power generating set for showing the exemplary embodiment one according to the present invention
The flow chart of method processed；
Fig. 5 is the operation control for the wind power generating set for showing the exemplary embodiment two according to the present invention
The flow chart of method processed；
Fig. 6 is to show to the exemplary of blower fan to show before being chosen according to the exemplary embodiment two of the present invention
It is intended to；
Fig. 7 is the schematic diagram for the exemplary process for showing step S520；
Fig. 8 is the operation control for the wind power generating set for showing the exemplary embodiment three according to the present invention
The flow chart of method processed；
Fig. 9 is the processing for the progress control method for showing the wind power generating set according to embodiment three
Example；
Figure 10 is the operation for the wind power generating set for showing the exemplary embodiment four according to the present invention
The flow chart of control method；
Figure 11 is the schematic diagram for the exemplary process for showing the step S1030 in Figure 10；
Figure 12 is the schematic diagram for the another exemplary processing for showing the step S1030 in Figure 10；
Figure 13 is the operation for the wind power generating set for showing the exemplary embodiment five according to the present invention
The logic diagram of control device；
Figure 14 is the operation for the wind power generating set for showing the exemplary embodiment six according to the present invention
The logic diagram of control device；
Figure 15 is the operation for the wind power generating set for showing the exemplary embodiment seven according to the present invention
The logic diagram of control device；
Figure 16 is the operation for the wind power generating set for showing the exemplary embodiment eight according to the present invention
The logic diagram of control device.
Embodiment
The basic conception of the present invention is that wind regime number is set up between the wind power generating set in wind power plant
According to sharing mechanism.Specifically, by the central monitoring system of wind power plant from the wind-force in wind power plant
Generating set collects its geographic position data and its wind regime data gathered in real time, then by collection
These data distributions are to other wind power generating sets in wind power plant.Each wind power generating set can root
The wind regime data that are measured according to receiving from other wind power generating sets are controlled tactful tune in advance
It is whole, improve generated energy.Meanwhile, data processing amount is relatively low, it is to avoid because relying on a large amount of historical datas
Carry out hysteresis quality, complexity and the inaccuracy of wind regime variation prediction.
Wind regime data mentioned here include, but not limited to, air speed value and wind direction value etc..It is related to
Control strategy adjustment includes, but not limited to the driftage control performed to wind power generating set and/or become
Oar is controlled.In addition, the control strategy adjustment being related to may also include, for the fortune of wind power generating set
Row state or stopped status correspondingly perform driftage control, pitch control and/or blown standby etc..
Further, the multiple wind power plants of covering can be set up by cloud computing technology and technology of Internet of things
Wind power plant intelligent cluster control system.
Wind power plant intelligent cluster control system
Fig. 1 is to show showing according to the wind power plant intelligent cluster control system of the present general inventive concept
Example property topological diagram.
As shown in figure 1, being provided for receiving and storing from multiple wind power plants 105,106 and beyond the clouds
107 all kinds of data (such as fan parameters, ring related to wind power generating set and its operation collected
Border parameter, operational factor etc.) cloud server 101.Cloud server 101 can also be based on connecing
These data related to wind power generating set and its operation received are to multiple wind power plants 105,106
Coordinated and managed with the wind power generating set in 107.
Be respectively equipped with multiple wind power plants 105,106 and 107 wind power plant central monitoring system 102,
103 and 104.Wind power generating set (such as wind-force in multiple wind power plants 105,106 and 107
Generating set 108,109 and it 110) will each gather related to wind power generating set and its operation
Data (such as fan parameter, ambient parameter, operational factor) etc. be uploaded to its affiliated wind power plant
Wind power plant central monitoring system 102,103 and 104.In the data that wind power generating set is uploaded
It may include its geographic position data (such as geographical position coordinates) and the wind regime data (example detected in real time
Such as air speed value and wind direction value).
Wind power plant central monitoring system 102,103 and 104 receives each affiliated wind power plant 105,106
To the data related to wind power generating set and its operation of the wind power generating set collection in 107
(geographic position data and its wind regime data detected in real time including wind power generating set),
And these data distributions are sent out to other wind-force in each affiliated wind power plant 105,106 and 107
Group of motors, so that each wind power generating set can be real-time with its according to the geographic position data received
The wind regime data detected perform corresponding control to itself operational outfit, such as driftage control and/or
Pitch control etc..
On the other hand, wind power plant central monitoring system 102,103 and 104 respectively with cloud server
101 perform communication, are sent out for uploading it to cloud server 101 from the wind-force in affiliated wind power plant
All kinds of data related to wind power generating set and its operation that group of motors is collected (such as join by blower fan specification
Number, ambient parameter, operational factor etc.).
Geographical position and wind regime data acquisition
Each wind power generating set (such as wind power generating set 108) is in order to gather its geographical position number
According to this and operational factor, various kinds of sensors can be set in multiple positions.Fig. 2 is shown according to this hair
The illustrative diagram that sensor is set in wind power generating set of bright general plotting.Such as Fig. 2
It is shown, in wind power generating set 108 at least provided with anemobiagraph 202, anemoscope 203 and
Position indicator 204.Anemobiagraph 202 and anemoscope 203 are respectively used to detect wind speed and direction, positioning
Instrument 204 is used for the geographical position coordinates for gathering wind power generating set 108.It is also possible to provide example
Such as, for the height above sea level that detects wind power generating set 108 pressure-altitude sensor 205 and
Temperature sensor 206 for the temperature at multiple positions for measuring wind power generating set 108.Wind-force
The supplemental characteristic that the master control system 201 of generating set 108 is detected (includes, but not limited to
Air speed value, wind direction value, geographical position coordinates, height above sea level angle value, temperature value etc.) it is uploaded to wind-powered electricity generation
Center court monitoring system 102.
Polar coordinates are calculated and virtual radar is built
On this basis, according to the present general inventive concept, each wind power generating set is according to from its institute
The ground for other wind power generating sets that the wind power plant central monitoring system set in category wind power plant is received
Reason position data and the wind regime data detected in real time generate virtual radar data as autonomous operation
The reference frame of control.
Fig. 3 is to show the polar coordinates of wind power generating set and generation in the wind power plant according to the present invention
Virtual radar schematic diagram.Specifically, wind power generating set 301 is set up with its own (this wind
Power generator group) position is limit, with from the predetermined angle direction of limit (such as direct north)
Ray be pole axis polar coordinate system.Relative to wind power generating set 301 (this wind power generating set)
For, the position of other wind power generating sets (such as wind power generating set 302) of same wind power plant
Data are expressed as it and sat relative to limit apart from r and its pole relative to the angle ɑ of pole axis
Mark.
Assuming that the gps coordinate of wind power generating set 301 is [X1, Y1], wind power generating set 302
Gps coordinate be [X2, Y2].According to Pythagorean theorem, wind power generating set 301 and wind-power electricity generation
The distance between unit 302 r is：
With vertical direction in Fig. 3 (direct north) for degree direction of pole axis, i.e., 0.Relative to wind-power electricity generation
, can be relative by calculating wind power generating set 302 for unit 301 (this wind power generating set)
Sine value sin ɑ and cosine value cos ɑ in the present position of wind power generating set 301 obtains wind-force hair
The polar angle ɑ of group of motors 302：
Wherein, according to the size that calculates obtained sine value sin ɑ and cosine value cos ɑ and positive and negative,
Determine the polar angle ɑ of wind power generating set 302：
If sin ɑ>0 and cos ɑ>0, it is determined that the polar angle of wind power generating set 302 is ɑ；
If sin ɑ>0 and cos ɑ<0, it is determined that the polar angle of wind power generating set 302 is
ɑ+90；
If sin ɑ<0 and cos ɑ<0, it is determined that the polar angle of wind power generating set 302 is
ɑ+180；
If sin ɑ<0 and cos ɑ>0, it is determined that the polar angle of wind power generating set 302 is
ɑ+270；
If sin ɑ=0 and cos ɑ=1, it is determined that the polar angle of wind power generating set 302 is
0；
If sin ɑ=1 and cos ɑ=0, it is determined that the polar angle of wind power generating set 302 is
90；
If sin ɑ=0 and cos ɑ=- 1, it is determined that the polar angle of wind power generating set 302
For 180；
If sin ɑ=- 1 and cos ɑ=0, it is determined that the polar angle of wind power generating set 302
For 270.
In this way, the polar angle of wind power generating set 302 is ɑ.Assuming that calculating wind-driven generator
The variable of the polar angle of group 303 is β, then the polar angle of wind power generating set 303 is
β+90.Similarly, the pole for calculating other wind power generating sets in same wind power plant according to preceding method is sat
Mark data are used as its position data.
Calculating each wind power generating set in wind power plant, relative to this wind power generating set, (wind-force is sent out
Group of motors 301) polar data after, virtual radar as shown in Figure 3 can be built.By this
Virtual radar, wind power generating set 301 can be to the wind power generating set of other in wind power plant, such as wind
Power generator group 302 and wind power generating set 303 are positioned.
Associated storage
In addition, each wind power generating set is for the ease of maintenance and management, it calculates other obtained wind-force
The polar data of generating set and its wind speed measured from other wind power generating sets received
Value and wind direction value etc., can be by the polar coordinates of each wind power generating set in wind power plant and from described in each
The air speed value and wind direction value that wind power generating set is measured associatedly are stored.For example, many dimensions can be passed through
The form of group store each wind power generating set polar data and its receive from other wind-force
Air speed value and wind direction value that generating set is measured.
Alternatively, by the polar data of each wind power generating set and its receive from other wind
Height above sea level angle value, air speed value and the wind direction value that power generator group is measured associatedly are stored in Multidimensional numerical
In.
Under represent foregoing associated storage data example.
| Blower fan sequence number | Data sequence |
| 1 | [angle value 1, distance value 1, air speed value 1, wind direction value 1, height value 1] |
| 2 | [angle value 2, distance value 2, air speed value 2, wind direction value 2, height value 2] |
| 3 | [angle value 3, distance value 3, air speed value 3, wind direction value 3, height value 3] |
| 4 | [angle value 4, distance value 4, air speed value 4, wind direction value 4, height value 4] |
| …… | …… |
| n | [angle value n, distance value n, air speed value n, wind direction value n, height value n] |
Wherein, 1~angle value of angle value n is respectively 1~wind power generating set of wind power generating set n
Polar angle value, 1~distance value of distance value n is respectively 1~wind-driven generator of wind power generating set
Group n polar coordinates distance value, 1~air speed value of air speed value n is respectively from 1~wind-force of wind power generating set
The air speed value that generating set n is measured, wind direction value 1~wind direction value n be respectively from wind power generating set 1~
The wind direction value that wind power generating set n is measured, 1~height value of height value n is respectively from wind-driven generator
The height above sea level angle value that group 1~wind power generating set n is measured.
Thus, this wind power generating set can be sent out according to each 1~wind-force of wind power generating set of associated storage
Group of motors n polar data and surveyed in real time from each 1~wind power generating set of wind power generating set n
The wind regime data obtained perform control accordingly to the operational outfit of itself, such as go off course control and/or change oar
Control etc..
The exemplary embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment one
Fig. 4 is the operation control for the wind power generating set for showing the exemplary embodiment one according to the present invention
The flow chart of method processed.Can be for example, performing the present embodiment in the master control system of wind power generating set
Method.
Reference picture 4, in step S410, obtains the current direction of cabin of this wind power generating set
Data.
Specifically, the current direction of the cabin of this wind power generating set generally with this wind power generating set
Yaw angle it is consistent.Therefore, alternatively, in step S410, obtain from described wind-power electricity generation
The yaw angle angle value that the driftage counter of unit is read, and obtain described from the yaw angle angle value
The data of the current direction of the cabin of this wind power generating set.Certainly, this wind power generating set is obtained
The mode of the current direction of cabin be not limited to aforementioned manner, can also be for example, by being arranged on cabin
On direction finder (such as hand radio directional finer or electronic compass direction finder) equipment obtain should
The data of direction.
In step S420, according to the position of each wind power generating set in the data of the direction, wind power plant
Put data and the wind regime data that measure from each wind power generating set are to described wind power generating set
Operational outfit perform control, to improve the generated energy of described wind power generating set.
Specifically, the master control system of wind power generating set can by the direction of this wind power generating set,
Its received from wind power plant central monitoring system with other wind power generating sets in the wind power plant
The related data in position and wind regime data (including the wind speed measured in real time from each wind power generating set
Value and wind direction value) predict that the wind regime of this wind power generating set changes, set using existing hardware detection
Standby, the operational outfit to described wind power generating set performs control strategy adjustment in advance, improves
The generated energy of this wind power generating set, without increase additional hardware detection device, saves operation
Cost.
In order to obtain in wind power plant the position data of other wind power generating sets and build virtual radar,
As it was previously stated, the progress control method of the wind power generating set of the exemplary embodiment of the present invention is also wrapped
Include：The geographical position coordinates (such as gps coordinate) measured from other wind power generating sets are received, and
And geographical position coordinates according to this wind power generating set and the ground that is measured from other wind power generating sets
Reason position coordinates calculates the polar coordinates of other wind power generating sets.In foregoing " polar coordinates calculating and void
Plan radar structure " has specifically described the polar coordinates and structure for calculating each wind power generating set in part
The processing of virtual radar is built, be will not be repeated here.
Further, in order to collect the wind regime data measured from other wind power generating sets, the present invention
The progress control method of wind power generating set of exemplary embodiment also include：Receive from other wind
Air speed value and wind direction value that power generator group is measured, and by each wind power generating set in wind power plant
Polar coordinates associatedly stored with the air speed value and wind direction value that are measured from each wind power generating set.
Embodiment two
Fig. 5 is the operation control for the wind power generating set for showing the exemplary embodiment two according to the present invention
The flow chart of method processed.The exemplary process of step S420 described in embodiment two in Fig. 4.
Reference picture 5, in step S510, the chosen position wind-force hair consistent with the current direction
Group of motors, to blower fan, regard the wind regime data measured from the forward direction blower fan of selection as prediction as preceding
The reference of wind regime change simultaneously carries out corresponding control strategy adjustment in advance.
Specifically, from choosing pole among the position data of other wind power generating sets in the wind power plant
Difference between the polar angle of the current direction of cabin of coordinate angle and this wind power generating set is pre-
The corresponding wind power generating set of position data in angular range is determined as the forward direction blower fan.
Fig. 6 is to show to the exemplary of blower fan to show before being chosen according to the exemplary embodiment two of the present invention
It is intended to.Reference picture 6, in each wind of wind power generating set 401 in foregoing calculating wind power plant
In the virtual radar of the polar coordinates generation of power generator group, the position of wind power generating set 404,405
Current direction is basically identical with the cabin of this wind power generating set 401, that is to say, that wind-force is sent out
Cabin of the polar angle of group of motors 404 and 405 respectively with this wind power generating set 401 is current
Difference between the polar angle of direction is in predetermined angular range (such as [- 2 degree, 2 degree]), therefore
Wind power generating set 404 or wind power generating set 405 can be current as wind power generating set 401
Forward direction blower fan.
Shown in example as shown in Figure 6, the position wind power generating set consistent with current direction can
To be more than one.Although can by it is therein any one be chosen for current forward direction blower fan,
With the relative proximity of wind regime with this wind power generating set of this wind power generating set close to, therefore from
The wind regime data that such wind power generating set is measured are as with reference to ideal.Correspondingly, choose
The processing of forward direction blower fan can also include：If the cabin of polar angle and this wind power generating set is worked as
The previous dynasty to polar angle between position data corresponding wind-force of the difference in predetermined angular range
The number of generating set is more than one, then choose among the corresponding wind power generating set with it is described
The minimum wind power generating set of the distance between this wind power generating set is used as the forward direction blower fan.Root
Before being chosen according to polar angle and distance to blower fan, wind regime variation prediction not by the wind turbulent flow can be made
Influence, is conducive to improving forecasting accuracy.
Further, if the wind power generating set and this wind power generating set that are referred to as wind regime
Height above sea level has big difference, then due to difference in height, wind regime and this wind-force of the wind power generating set
The wind regime difference of generating set is larger, without preferably reference value.
It is therefore preferred that the operation control of the wind power generating set of the exemplary embodiment of the present invention
Method also includes：The height above sea level angle value measured from other wind power generating sets is received, and will be described
The polar coordinates of each wind power generating set and the height above sea level measured from each wind power generating set in wind power plant
Height value, air speed value and wind direction value are associatedly stored.Correspondingly, in step S510, from the wind
The wind-power electricity generation for meeting following condition is chosen in electric field among the position data of other wind power generating sets
Unit is used as the forward direction blower fan：The cabin of its polar angle and this wind power generating set works as the previous dynasty
To polar angle between difference in the poor scope of predetermined angular, and height above sea level angle value with it is described
Difference between the height above sea level angle value of this wind power generating set is in predetermined height difference scope (for example, but not
It is limited to, [- 20 meters, 20 meters]) in.If the height above sea level of other wind power generating sets and this wind-force
The height above sea level difference of generating set is too big, such as differs by more than 100 meters, then chooses such wind-force
Generating set as it is preceding to blower fan without actual reference significance.
According to aforementioned processing, chosen position is consistent with the direction that the cabin of this wind power generating set is current
And the wind power generating set conduct that the height above sea level of height above sea level and this wind power generating set is closer to
The current forward direction blower fan of this wind power generating set, to carry out this wind according to more reliable wind regime data
The control strategy adjustment of power generator group.
Hereafter, in step S520, surveyed according to preceding to the position data of blower fan, from the forward direction blower fan
The air speed value and/or the running status of wind direction value and described wind power generating set obtained is to the wind
The operational outfit of power generator group performs control, to improve the generated energy of described wind power generating set.
If for example, described wind power generating set is in running status and the basis is from described
Wind direction difference between wind direction value that forward direction blower fan is measured and the wind direction value measured before exceeds predetermined wind
To poor scope, then according to measured from the forward direction blower fan air speed value and wind direction value, it is described before aweather
The distance between machine and described wind power generating set are performed partially in advance to described wind power generating set
Boat control.
Fig. 7 is the schematic diagram for the exemplary process for showing step S520.As shown in Figure 7, it is assumed that
Detect before wind vector, the direction current with the cabin of wind power generating set 401 of wind direction 501 is (i.e.
Its current yaw angle) unanimously, and the current forward direction blower fan of wind power generating set 401 is wind
Power generator group 405.When wind power generating set 401 is according to receiving from wind power generating set 405
When the wind direction that (forward direction blower fan) is measured in real time is changed into wind direction 502 from wind direction 501, if wind direction 501
Difference between wind direction 502 exceedes the poor scope of predetermined wind direction, that is to say, that meets and is gone off course
The condition of control, then according to the distance between wind power generating set 401 and wind power generating set 405,
The change value of wind direction angle and the air speed value measured from wind power generating set 405 calculate pre- driftage control
Time processed, its yaw system is controlled to be gone off course in advance to wind direction 502, it is autonomous accurately to realize
Driftage, improves generated energy.Because the technical program can in advance be held using existing hardware detection
The accurate driftage control of row, without increasing extra hardware detection, saves operation cost.
On the other hand, if the difference between wind direction 501 and wind direction 502 is poor not less than predetermined wind direction
Scope, then similar to existing driftage control, wind power generating set 401 is surveyed still according to its own
The wind direction value obtained is used as driftage foundation.
Embodiment three
Fig. 8 is the operation control for the wind power generating set for showing the exemplary embodiment three according to the present invention
The flow chart of method processed.The exemplary process of step S520 described in embodiment three in Fig. 5.
Specifically, the processing of embodiment three is particularly suitable for use in wind direction cataclysm and/or the situation that frequently changes.
Reference picture 8, in step S810, chooses from its survey among other described wind power generating sets
The wind power generating set of the wind direction value changes maximum obtained is preceding to blower fan as the first current preparation.
Here to blower fan it is understood that inclined meeting subsequent execution before the first current preparation chosen
Under conditions of boat, the wind-power electricity generation for the target direction that the expection of this wind power generating set will go off course is determined
Unit, this wind power generating set carries out inclined to the preceding wind direction arrived to aerator supervision of the first preparation of determination
Boat.
In step S820, according to becoming before the forward direction blower fan and first preparation to the wind regime of blower fan
Change state determines the need for carrying out driftage control.
Specifically, if the wind speed measured before the forward direction blower fan and first preparation to blower fan
Value exceed predetermined the first wind speed threshold value and from the forward direction blower fan and first preparation it is preceding to
The changing value for the wind direction that blower fan is measured exceedes predetermined wind vector threshold value, it is determined that need to carry out
Driftage control.
Due in case of lower wind speeds, wind vector relatively frequently and float it is larger, but low
It is not necessary to frequently execute driftage control under wind speed, therefore, only surveyed before the first preparation to blower fan
In the case that air speed value is larger and changing value of wind direction is also larger, just perform driftage and control.
On the other hand, if before the forward direction blower fan and first preparation to blower fan any one
The air speed value measured is not less than the first wind speed threshold value or from the forward direction blower fan and described first
Before any one wind direction measured from preparation to blower fan changing value not less than the first wind direction threshold value, then really
Surely driftage control need not be carried out.
If in step S820, it is determined that need carry out driftage control, then in step S830, according to from
The air speed value and wind direction value measured before first preparation to blower fan is carried to described wind power generating set
It is preceding to perform driftage control, so that described wind power generating set is examined to first preparation is preceding to blower fan
The wind direction driftage measured, so as to improve the generated energy of this wind power generating set.
Specifically, if described wind power generating set is in stopped status, described wind is controlled
Power generator group enters holding state, and according to the wind direction measured before first preparation to blower fan
The yaw system of the value control wind power generating set windage yaw is navigated, so as to reduce driftage to wind
The delay of caused startup time, timely enters power generation operation state, improves generated energy.
On the other hand, if described wind power generating set is in running status, according to described the
To the distance between blower fan and described wind power generating set and from first preparation before one preparation
The air speed value and wind direction value that forward direction blower fan is measured perform driftage control to described wind power generating set in advance
System, that is to say, that made with the air speed value from the first current preparation to blower fan and wind direction value that are measured before
For with reference to carrying out autonomous control of going off course so that described wind power generating set to first preparation it is preceding to
The wind direction driftage that aerator supervision is arrived, so as to improve the generated energy of this wind power generating set.
Fig. 9 is the processing for the progress control method for showing the wind power generating set according to embodiment three
Example.Reference picture 9, it is assumed that wind direction frequently changes or wind direction cataclysm, currently known wind direction is wind
To 501, wind power generating set 401 is measured according to receiving from each wind power generating set in real time
Wind regime data determine that the wind vector of wind power generating set 403 is maximum, thus choose wind-power electricity generation
Unit 403 is preceding to blower fan as the first preparation, and prepares to measure to by wind power generating set 403
Wind direction 601 gone off course, and according to wind power generating set 401 and wind power generating set 403
The distance between, the change value of wind direction angle and the air speed value measured from wind power generating set 403
Pre- driftage control time is calculated, controls its yaw system to be gone off course in advance to wind direction 601, with essence
Autonomous driftage really is realized, generated energy is improved.
If in step S820, it is determined that driftage control need not be carried out, then can be according to conventional control
Strategy execution is controlled, and will not be described here.
By aforementioned processing, wind direction frequently change or wind direction cataclysm in the case of, can refer to from wind
The wind regime data that the wind power generating set that wind speed is changed greatly in electric field is measured are accurate to perform in advance
Driftage control, using existing detection device, improves the generated energy of wind power generating set, and nothing
Extra hardware detection need to be added, operation cost is saved.
Example IV
Figure 10 is the operation for the wind power generating set for showing the exemplary embodiment four according to the present invention
The flow chart of control method.The another exemplary of step S520 described in example IV in Fig. 5
Processing.
Specifically, the processing of example IV is particularly suitable for use in wind speed cataclysm and/or wind speed frequently changes
Situation.
Reference picture 10, in step S1010, chooses from it among other described wind power generating sets
The wind power generating set of the wind speed value changes maximum measured is preceding to blower fan as the second current preparation,
To refer to the wind regime data measured before the second preparation to blower fan in subsequent treatment to this wind-power electricity generation
Unit performs corresponding control.
In step S1020, according to before the forward direction blower fan and wind speed from first preparation to blower fan
Variable condition determines the need for being controlled.
Specifically, if the changing value of the wind speed measured before second preparation to blower fan exceedes in advance
The first fixed wind speed change threshold and the changing value of the wind speed measured from the forward direction blower fan exceed pre-
The second fixed wind speed change threshold, it is determined that needs are controlled.Here, the second wind speed change threshold
Value can be less than the first wind speed change threshold.That is, only in the past to before blower fan and the second preparation
When the wind speed measured to blower fan changes all larger, just determine that needs are controlled.
Correspondingly, if the changing value of the wind speed measured to blower fan before second preparation not less than
The changing value of the first wind speed change threshold or the wind speed measured from the forward direction blower fan not less than
The second wind speed change threshold, it is determined that need not be controlled.
If determining that needs are controlled in step S1020, in step S1030, according to from institute
State the wind regime data measured before the second preparation to blower fan and control is performed to described wind power generating set.
Specifically, can be according to pre- from described second if this wind power generating set is in running status
The size for the air speed value that standby forward direction blower fan is measured this wind power generating set is performed overspeed protection control or
Person is controlled policy optimization adjustment.
If for example, the air speed value measured before second preparation to blower fan is not up to predetermined machine
Group cut-out wind speed, then according to before second preparation between blower fan and described wind power generating set
Distance and the air speed value and wind direction value that are measured to blower fan before second preparation to described wind
Power generator group performs driftage control and pitch control in advance.That is, before the second preparation
When the air speed value measured to blower fan is still in the safe range that wind power generating set is run, using wind
The raising of speed carries out driftage control and pitch control in time, in advance, to improve described wind-force hair
The generated energy of group of motors.Here the processing phase of driftage control and the driftage control of previous embodiment two
Seemingly, it will not be repeated here.
If for another example the air speed value measured before second preparation to blower fan reaches predetermined machine
Group cut-out wind speed, then according to before second preparation to the position data of blower fan and from described second
The air speed value measured before preparation to blower fan obtains strong wind Expected Arrival Time, prepares to described wind-force
Generating set performs overspeed protection control, with when wind speed is become greater to more than unit cut-out wind speed suddenly,
Overspeed protection is carried out in advance, ensures the service life of wind power generating set.
Figure 11 is the schematic diagram for the exemplary process for showing step S1030.Still shown with foregoing Fig. 5
Wind power plant topology exemplified by.Reference picture 11, it is assumed that wind direction frequently changes or wind direction cataclysm, wind-force
The wind regime data that generating set 401 is measured from each wind power generating set in real time according to receiving are true
The wind speed change for determining wind power generating set 405 is maximum, and wind speed 802 is changed into from wind speed 801 before,
Thus wind power generating set 405 is chosen preceding to blower fan as the second preparation.It is determined that wind speed exceedes machine
After group cut-out wind speed, itself and wind-driven generator are obtained according to the position data of wind power generating set 405
Group the distance between 401, and the wind measured according to the data of the distance from wind power generating set 405
Speed value obtains strong wind Expected Arrival Time, and wind power generating set 401 prepares to carry out the guarantor that overruns to itself
Shield, ensures its operation safety, is conducive to extending its service life.
On the other hand, if described wind power generating set is in stopped status, described is controlled
Wind power generating set enters holding state, and return to step S410, continues executing with proposed by the present invention
The progress control method of wind power generating set.
Figure 12 is the schematic diagram for the another exemplary processing for showing step S1030.Still with foregoing Fig. 5
Exemplified by the topology of the wind power plant shown.Reference picture 12, it is assumed that wind power generating set 401, which is in, shuts down
State, wind power generating set 401 according to measuring of receiving in real time from each wind power generating set
Wind regime data determine that the wind speed change of wind power generating set 405 is maximum, are changed into wind speed 602, thus
Choose wind power generating set 405 preceding to blower fan as the second preparation.It is determined that wind speed (such as larger than 5
The wind speed of meter per second) change to more than after threshold wind velocity (such as 3 meter per seconds), wind power generating set 401
Control itself enters holding state, and performs step S410, realizes automatic driftage or in advance to wind,
Continuously carry out the progress control method of wind power generating set proposed by the present invention.
Embodiment five
Figure 13 is the operation for the wind power generating set for showing the exemplary embodiment five according to the present invention
The logic diagram of control device.The operation control device may be provided at the master control system of wind power generating set
In system, the progress control method for performing the wind power generating set such as embodiment one.
Reference picture 13, the operation control device of the wind power generating set of exemplary embodiment five includes court
To determining unit 1310 and operation control unit 1320.
The current direction of cabin for being used to obtain this wind power generating set towards determining unit 1310
Data.
Control unit 1320 is run, for each wind-force hair in the data according to the direction, wind power plant
The position data of group of motors and the wind regime data that measure from each wind power generating set are to described wind
The operational outfit of power generator group performs control, to improve the generated energy of described wind power generating set.
Alternatively, for described wind power generating set, each wind-power electricity generation in the wind power plant
The position data of unit is expressed as with described wind power generating set limit, with pre- from the limit
The ray of fixed angle direction is the polar data of pole axis.
Further, the operation control device of the wind power generating set also includes：Parameter receiving unit
1330, for receiving the air speed value and wind direction value that are measured from other described wind power generating sets；Parameter
Memory cell 1340, for by the polar coordinates of each wind power generating set in the wind power plant with from each
The air speed value and wind direction value that the individual wind power generating set is measured associatedly are stored.
Further, parameter receiving unit 1330 is additionally operable to receive from other described wind power generating sets
The geographical position coordinates measured.Correspondingly, the operation control device of the wind power generating set also includes：
Polar coordinates computing unit 1340, for the geographical position coordinates according to described wind power generating set and
The geographical position coordinates measured from other described wind power generating sets calculate other described wind-driven generators
The polar coordinates of group.
Further, it is used to obtain from the inclined of described wind power generating set towards determining unit 1310
The yaw angle angle value that the counter that navigates is read, and obtain described wind-force hair from the yaw angle angle value
The data of the current direction of the cabin of group of motors.
Embodiment six
Figure 14 is the operation for the wind power generating set for showing the exemplary embodiment six according to the present invention
The logic diagram of control device.The operation control device of the wind power generating set is shown in embodiment five
The embodiment of the operation control device gone out.
Reference picture 14, the operation control of the wind power generating set of exemplary embodiment six of the invention is set
Operation control unit 1320 in standby further includes：Forward direction blower fan chooses unit 1420, uses
Current forward direction blower fan is used as in the chosen position wind power generating set consistent with the current direction.
Correspondingly, operation control unit 1320 is used for according to the position data of the forward direction blower fan, from described
Air speed value and/or wind direction value and the operation shape of described wind power generating set that forward direction blower fan is measured
State performs control to the operational outfit of the wind power generating set, to improve described wind-driven generator
The generated energy of group.
Forward direction blower fan, which chooses unit 1420, to be used for from other wind power generating sets in the wind power plant
The pole that polar angle and the current direction of cabin of this wind power generating set are chosen among position data is sat
Mark position data corresponding wind power generating set conduct of the difference between angle in predetermined angular range
The forward direction blower fan.
Further, if forward direction blower fan chooses unit 1420 and is additionally operable to polar angle and this wind-force
Position of the difference in predetermined angular range between the polar angle of the current direction of cabin of generating set
The number for putting the corresponding wind power generating set of data is more than one, then forward direction blower fan chooses unit 1420
Choose among the corresponding wind power generating set with the distance between described wind power generating set most
Small wind power generating set is used as the forward direction blower fan.
Further, parameter receiving unit 1330 is additionally operable to receive from other described wind power generating sets
The height above sea level angle value measured, and parameter storage unit 1340 is used for each wind in the wind power plant
The polar coordinates of power generator group and the height above sea level angle value measured from wind power generating set each described, wind
Fast value and wind direction value are associatedly stored.Correspondingly, forward direction blower fan is chosen unit 1420 and is used for from described
The wind-force hair for meeting following condition is chosen in wind power plant among the position data of other wind power generating sets
Group of motors is used as the forward direction blower fan：The cabin of its polar angle and this wind power generating set is current
Difference between the polar angle of direction is in the poor scope of predetermined angular, and height above sea level angle value and institute
The difference between the height above sea level angle value of this wind power generating set is stated in the range of predetermined height difference.
Further, operation control unit 1320 is used for：If at described wind power generating set
In running status and the basis wind direction value measured from the forward direction blower fan and the wind measured before
Exceed the poor scope of predetermined wind direction to the wind direction difference between value, then basis is measured from the forward direction blower fan
Air speed value and the distance between wind direction value, the forward direction blower fan and described wind power generating set pair
Described wind power generating set performs driftage control in advance.
Embodiment seven
Figure 15 is the operation for the wind power generating set for showing the exemplary embodiment seven according to the present invention
The logic diagram of control device.The operation control device of the wind power generating set is shown in embodiment six
A kind of embodiment of control unit 1320 is run in the operation control device gone out.
Reference picture 15, operation control unit 1320 include the first preparation before to blower fan selection unit 1510,
The first control control execution unit 1530 of determining unit 1520 and first.
Choosing unit 1510 to blower fan before first preparation is used to work as from other described wind power generating sets
It is middle to choose the wind power generating set from its wind direction value changes maximum measured as the first current preparation
Forward direction blower fan.
Before first control determining unit 1520 is used for according to the forward direction blower fan and first preparation
Determine the need for carrying out driftage control to the wind regime variable condition of blower fan.
Specifically, the first control determining unit 1520 is used for：If before from first preparation aweather
The air speed value that machine is measured is surveyed before exceeding the first predetermined wind speed threshold value and first preparation to blower fan
The changing value of the wind direction obtained exceedes predetermined wind vector threshold value, then the first control determining unit 1520
It is determined that needing to carry out driftage control；If the air speed value measured before from first preparation to blower fan is not
More than the changing value of the wind direction measured before the first wind speed threshold value or first preparation to blower fan
Not less than the first wind direction threshold value, then the first control determination of determining unit 1520 need not carry out driftage control
System.
Determine to need if the first control execution unit 1530 is used for the first control determining unit 1520
Carry out driftage control, then it is described first control execution unit according to before first preparation to blower fan
The air speed value and wind direction value measured performs driftage control in advance to described wind power generating set, so that
Described wind power generating set is gone off course to the preceding wind direction arrived to aerator supervision of first preparation.
Specifically, the first control execution unit 1530 is used for：If at described wind power generating set
In stopped status, then first execution unit 1530 is controlled to control described wind power generating set entrance to treat
Machine state, and shifted to an earlier date by described towards determining unit 1310 with the operation control unit 1320
Windage yaw is navigated；If described wind power generating set is in running status, the first control is held
Row unit 1530 according to before first preparation between blower fan and described wind power generating set
The air speed value and wind direction value measured before first preparation to blower fan is to described wind-force
Generating set performs driftage control in advance, so that described wind power generating set is to first preparation
The wind direction driftage that forward direction aerator supervision is arrived.
Embodiment eight
Figure 16 is the operation for the wind power generating set for showing the exemplary embodiment eight according to the present invention
The logic diagram of control device.The operation control device of the wind power generating set is shown in embodiment six
Another embodiment of control unit 1320 is run in the operation control device gone out.
Reference picture 16, operation control unit 1320 include the second preparation before to blower fan choose list 1610,
The second control control execution unit 1630 of determining unit 1620 and second.
Choosing unit 1610 to blower fan before second preparation is used to work as from other described wind power generating sets
It is middle to choose the wind power generating set from its wind speed value changes maximum measured as the second current preparation
Forward direction blower fan；
Before second control determining unit 1620 is used for according to the forward direction blower fan and first preparation
Determine the need for being controlled to the wind speed variable condition of blower fan；
Specifically, the second control determining unit 1620 is used for：If before from second preparation aweather
The changing value for the wind speed that machine is measured exceed predetermined the first wind speed change threshold and from it is described it is preceding aweather
The changing value for the wind speed that machine is measured exceedes the second predetermined wind speed change threshold, then the second control is determined
Unit 1620 determines that needs are controlled；If the wind speed measured before from second preparation to blower fan
The wind speed that is measured not less than the first wind speed change threshold or from the forward direction blower fan of changing value
Changing value not less than the second wind speed change threshold, then the second control determining unit 1620 is determined
It need not be controlled.
Determine to need if the second control execution unit 1630 is used for the second control determining unit 1620
It is controlled, then the second control execution unit 1620 is measured according to before second preparation to blower fan
Wind regime data control is performed to described wind power generating set.
Further, the second control execution unit 1630 is used for：If before second preparation to
The air speed value that blower fan is measured reaches predetermined unit cut-out wind speed, then the second control execution unit 1630
Surveyed according to the position data of blower fan before second preparation and before second preparation to blower fan
The air speed value obtained obtains strong wind Expected Arrival Time, and preparation was performed to described wind power generating set
Speed protection control；If the air speed value measured before from second preparation to blower fan is not up to predetermined
Unit cut-out wind speed, then the second control execution unit 1630 according to before second preparation to blower fan and
The distance between described wind power generating set and the wind measured before second preparation to blower fan
Fast value and wind direction value perform driftage control and pitch control to described wind power generating set in advance, with
Improve the generated energy of described wind power generating set.
Further, the second control execution unit 1630 is used for：If described wind-driven generator
Group is in stopped status, then the second control execution unit 1630 controls described wind power generating set to enter
Enter holding state, and according to before second preparation between blower fan and described wind power generating set
Distance and the wind regime data that are measured to blower fan before second preparation perform and windage yaw navigated.
According to the exemplary embodiment of the present invention, also provide a kind of including foregoing operation control device
Wind power generating set.
It may be noted that the need for according to implementation, all parts/step described in this application can be torn open
It is divided into more components/steps, also can be by the part of two or more components/steps or components/steps
Operative combination Cheng Xin components/steps, to realize the purpose of the present invention.
Above-mentioned the method according to the invention can be realized in hardware, firmware, or be implemented as depositing
Store up the software in recording medium (such as CD ROM, RAM, floppy disk, hard disk or magneto-optic disk)
Or computer code, or be implemented through the original storage of network download in long-range recording medium or
In nonvolatile machine readable media and the computer code that will be stored in local recording medium, from
And method described here can be stored in using all-purpose computer, application specific processor or programmable
Or such software processing in the recording medium of specialized hardware (such as ASIC or FPGA).Can
With understand, computer, processor, microprocessor controller or programmable hardware include can store or
The storage assembly (for example, RAM, ROM, flash memory etc.) of software or computer code is received, when
When the software or computer code are by computer, processor or hardware access and execution, realize and exist
The processing method of this description.In addition, when all-purpose computer is accessed for realizing the processing being shown in which
Code when, the execution of code is converted to all-purpose computer for performing the processing being shown in which
Special-purpose computer.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not
Be confined to this, any one skilled in the art the invention discloses technical scope in,
Change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, originally
The protection domain of invention should be based on the protection scope of the described claims.
Claims (31)
1. a kind of progress control method of wind power generating set, it is characterised in that methods described includes：
Obtain the data of the current direction of cabin of this wind power generating set；
According to the position data of each wind power generating set in the data of the direction, wind power plant and from institute
The wind regime data that each wind power generating set measures are stated to hold the operational outfit of described wind power generating set
Row control, to improve the generated energy of described wind power generating set.
2. according to the method described in claim 1, it is characterised in that each wind-force in the wind power plant
The position data of generating set is expressed as using described wind power generating set as limit, with described in
The ray of the predetermined angle direction of limit is the polar data of pole axis.
3. method according to claim 2, it is characterised in that methods described also includes：
The air speed value and wind direction value measured from other wind power generating sets is received,
By the polar coordinates of each wind power generating set in the wind power plant with from wind-power electricity generation each described
The air speed value and wind direction value that unit is measured associatedly are stored.
4. method according to claim 3, it is characterised in that described according to the direction
The position data of each wind power generating set and surveyed in data, wind power plant from each wind power generating set
The processing that the wind regime data obtained perform control to the operational outfit of described wind power generating set includes：
The chosen position wind power generating set consistent with the current direction as before current aweather
Machine；
The air speed value that is measured according to the position data of the forward direction blower fan, from the forward direction blower fan and/or
Fortune of the running status of wind direction value and described wind power generating set to the wind power generating set
Row equipment performs control.
5. method according to claim 4, it is characterised in that the chosen position with it is described
The consistent wind power generating set of current direction includes as the processing of current forward direction blower fan：
From choosing polar angle among the position data of other wind power generating sets in the wind power plant
Difference between the polar angle of the current direction of cabin of this wind power generating set is in predetermined angular model
The corresponding wind power generating set of position data in enclosing is as the forward direction blower fan.
6. method according to claim 5, it is characterised in that the chosen position with it is described
The consistent wind power generating set of current direction also includes as the processing of current forward direction blower fan：
If the polar angle of the current direction of cabin of polar angle and this wind power generating set it
Between the number of position data corresponding wind power generating set of the difference in predetermined angular range be more than one
It is individual, then choose among the corresponding wind power generating set between described wind power generating set
The minimum wind power generating set of distance is used as the forward direction blower fan.
7. method according to claim 5, it is characterised in that methods described also includes：
Receive the height above sea level angle value that is measured from other described wind power generating sets, and by the wind-powered electricity generation
The polar coordinates of each wind power generating set and the height above sea level measured from wind power generating set each described in
Height value, air speed value and wind direction value are associatedly stored,
The position data chosen position according to other wind power generating sets in wind power plant is worked as with described
The consistent wind power generating set of preceding direction includes as the processing of current forward direction blower fan：
Following bar is met from being chosen in the wind power plant among the position data of other wind power generating sets
The wind power generating set of part is used as the forward direction blower fan：Its polar angle and this wind power generating set
The current direction of cabin polar angle between difference in the poor scope of predetermined angular, and height above sea level
Difference between the height above sea level angle value of height value and described wind power generating set is in predetermined height difference scope
It is interior.
8. the method according to any one of claim 4~7, it is characterised in that the basis
The position data of the forward direction blower fan, the air speed value and/or wind direction value that are measured from the forward direction blower fan,
And the running status of described wind power generating set is held to the operational outfit of the wind power generating set
The processing of row control includes：
If described wind power generating set be in running status and the basis from it is described it is preceding aweather
Wind direction difference between wind direction value that machine is measured and the wind direction value measured before is beyond the poor model of predetermined wind direction
Enclose, then according to the air speed value and wind direction value, the forward direction blower fan and institute measured from the forward direction blower fan
State the distance between this wind power generating set and driftage control is performed in advance to described wind power generating set.
9. the method according to any one of claim 4~7, it is characterised in that the basis
The position data of the forward direction blower fan, the air speed value and/or wind direction value that are measured from the forward direction blower fan,
And the running status of described wind power generating set is held to the operational outfit of the wind power generating set
The processing of row control includes：
Chosen among other described wind power generating sets by the wind of its wind direction value changes maximum measured
Power generator group is preceding to blower fan as the first current preparation；
According to before the forward direction blower fan and wind regime variable condition from first preparation to blower fan determine be
It is no to need to carry out driftage control, and if it is determined that need to carry out driftage control, then according to from described
The air speed value and wind direction value measured before first preparation to blower fan is held in advance to described wind power generating set
Row driftage control, so that described wind power generating set is arrived to first preparation is preceding to aerator supervision
Wind direction driftage.
10. method according to claim 9, it is characterised in that described according to the forward direction
Before blower fan and first preparation progress driftage control is determined the need for the wind regime variable condition of blower fan
The processing of system includes：
If the air speed value measured before the forward direction blower fan and first preparation to blower fan exceedes
Predetermined the first wind speed threshold value and measured before the forward direction blower fan and first preparation to blower fan
Wind direction changing value exceed predetermined wind vector threshold value, it is determined that need carry out driftage control；
If to any one wind speed measured of blower fan before the forward direction blower fan and first preparation
Value not less than the first wind speed threshold value, or from the forward direction blower fan and first preparation it is preceding to
The changing value for the wind direction that any one of blower fan is measured is not less than the first wind direction threshold value, it is determined that need not
Carry out driftage control.
11. method according to claim 10, it is characterised in that the basis is from described
The wind direction value measured before one preparation to blower fan performs driftage control in advance to described wind power generating set
Processing include：
If described wind power generating set is in stopped status, described wind-driven generator is controlled
Group enters holding state, and returns to the current court of the execution cabin for obtaining this wind power generating set
To data and data according to the direction, wind power plant in each wind power generating set positional number
According to fortune of the wind regime data measured from each wind power generating set to described wind power generating set
Row equipment performs the processing of control, carries out navigating to windage yaw in advance；
If described wind power generating set is in running status, according to before first preparation to
The distance between blower fan and described wind power generating set and surveyed before first preparation to blower fan
The air speed value and wind direction value obtained performs driftage control in advance to described wind power generating set, so that institute
This wind power generating set is stated to go off course to the preceding wind direction arrived to aerator supervision of first preparation.
12. the method according to any one of claim 4~7, it is characterised in that described
The air speed value and/or wind direction value that are measured according to the position data of the forward direction blower fan, from the forward direction blower fan,
And the running status of described wind power generating set is held to the operational outfit of the wind power generating set
The processing of row control includes：
The maximum wind-force hair of the wind speed value changes measured is chosen among other described wind power generating sets
Group of motors is preceding to blower fan as the second current preparation；
According to before the forward direction blower fan and wind speed variable condition from first preparation to blower fan determine be
No needs are controlled, and if it is determined that need to be controlled, then according to from second preparation
The wind regime data that forward direction blower fan is measured perform control to described wind power generating set.
13. method according to claim 12, it is characterised in that described according to the forward direction
Determine the need for what is be controlled to the wind speed variable condition of blower fan before blower fan and first preparation
Processing includes：
If the changing value of the wind speed measured before from second preparation to blower fan exceedes predetermined first
The changing value of wind speed change threshold and the wind speed measured from the forward direction blower fan exceedes predetermined second
Wind speed change threshold, it is determined that needs are controlled；
If the changing value of the wind speed measured before from second preparation to blower fan is not less than described first
The changing value of wind speed change threshold or the wind speed measured from the forward direction blower fan is not less than described second
Wind speed change threshold, it is determined that need not be controlled.
14. method according to claim 12, it is characterised in that the basis is from described
The wind regime data measured before two preparations to blower fan perform the processing of control to described wind power generating set
Including：
If the air speed value measured before from second preparation to blower fan reaches that predetermined unit cuts out wind
Speed, then according to before second preparation to the position data of blower fan and before second preparation to
The air speed value that blower fan is measured prepares to perform described wind power generating set overspeed protection control；
If the air speed value measured before from second preparation to blower fan is not up to predetermined unit and cut out
Wind speed, then according to before second preparation to the distance between blower fan and described wind power generating set
And the air speed value and wind direction value measured before second preparation to blower fan is to described wind-power electricity generation
Unit performs driftage control and pitch control in advance.
15. method according to claim 12, it is characterised in that the basis is from described
The wind regime data measured before two preparations to blower fan perform the processing of control to described wind power generating set
Including：
If described wind power generating set is in stopped status, described wind-driven generator is controlled
Group enters holding state, and according to before second preparation to blower fan and described wind power generating set
The distance between and the wind regime data that are measured to blower fan before second preparation perform and windage yaw navigated.
16. a kind of operation control device of wind power generating set, it is characterised in that the equipment bag
Include：
Towards determining unit, the data of the current direction of cabin for obtaining this wind power generating set；
Control unit is run, for each wind-driven generator in the data according to the direction, wind power plant
The position data of group and the wind regime data measured from each wind power generating set are sent out described wind-force
The operational outfit of group of motors performs control, to improve the generated energy of described wind power generating set.
17. equipment according to claim 16, it is characterised in that each wind in the wind power plant
The position data of power generator group is expressed as with described wind power generating set limit, with described in
The ray of the predetermined angle direction of limit is the polar data of pole axis.
18. equipment according to claim 17, it is characterised in that the equipment also includes：
Parameter receiving unit, for receiving the air speed value measured from other wind power generating sets and wind direction
Value,
Parameter storage unit, for by the polar coordinates of each wind power generating set in the wind power plant with
The air speed value and wind direction value measured from wind power generating set each described is associatedly stored.
19. equipment according to claim 18, it is characterised in that the operation control unit
Including：Forward direction blower fan chooses unit, the wind-force consistent with the current direction for chosen position
Generating set is used as current forward direction blower fan；
The operation control unit is used for according to the position data of the forward direction blower fan, from the forward direction
Air speed value and/or the running status pair of wind direction value and described wind power generating set that blower fan is measured
The operational outfit of the wind power generating set performs control.
20. equipment according to claim 19, it is characterised in that the forward direction blower fan is chosen
Unit is used for from choosing polar coordinates among the position data of other wind power generating sets in the wind power plant
Difference between the polar angle of the current direction of cabin of angle and this wind power generating set is in predetermined angle
The corresponding wind power generating set of position data in the range of degree is used as the forward direction blower fan.
21. equipment according to claim 20, it is characterised in that the forward direction blower fan is chosen
Unit is additionally operable to：If the pole of polar angle and the current direction of cabin of this wind power generating set is sat
For marking position data corresponding wind power generating set of the difference between angle in predetermined angular range
Number is more than one, then chooses among the corresponding wind power generating set and described wind-driven generator
The minimum wind power generating set of the distance between group is used as the forward direction blower fan.
22. equipment according to claim 21, it is characterised in that the parameter receiving unit
It is additionally operable to receive the height above sea level angle value measured from other described wind power generating sets, and the parameter
Memory cell is used for by the polar coordinates of each wind power generating set in the wind power plant and from described in each
Height above sea level angle value, air speed value and the wind direction value that wind power generating set is measured associatedly are stored,
Wherein, the forward direction blower fan, which chooses unit, is used for other wind-driven generators out of described wind power plant
The wind power generating set for meeting following condition is chosen among the position data of group as the forward direction blower fan：
Between the polar angle of the current direction of cabin of its polar angle and this wind power generating set
Difference in the poor scope of predetermined angular, and the sea of height above sea level angle value and described wind power generating set
The difference between angle value is lifted in the range of predetermined height difference.
23. the equipment according to any one of claim 19~22, it is characterised in that described
Operation control unit is used for：If described wind power generating set is in running status and described
Exceed according to the wind direction difference between the wind direction value measured from the forward direction blower fan and the wind direction value measured before
The poor scope of predetermined wind direction, then according to the air speed value and wind direction value, institute measured from the forward direction blower fan
Described wind power generating set is carried to the distance between blower fan and described wind power generating set before stating
It is preceding to perform driftage control.
24. the equipment according to any one of claim 19~22, it is characterised in that described
Operation control unit includes：
Unit is chosen to blower fan before first preparation, for being selected among other described wind power generating sets
Take the maximum wind power generating set of the wind direction value changes measured from it as the first current preparation it is preceding to
Blower fan；
First control determining unit, for according to before the forward direction blower fan and first preparation aweather
The wind regime variable condition of machine determines the need for carrying out driftage control；
First control execution unit, if determining to need to carry out for the described first control determining unit
Driftage control, then described first control execution unit to be measured according to before first preparation to blower fan
Air speed value and wind direction value driftage control is performed in advance to described wind power generating set so that described
This wind power generating set is gone off course to the preceding wind direction arrived to aerator supervision of first preparation.
25. equipment according to claim 24, it is characterised in that first control is determined
Unit is used for：
If the air speed value measured before from first preparation to blower fan exceedes the first predetermined wind speed threshold
The changing value of the wind direction measured before value and first preparation to blower fan exceedes predetermined wind vector
Threshold value, then the first control determining unit determination needs to carry out driftage control；
If the air speed value measured before from first preparation to blower fan is not less than the first wind speed threshold
The changing value of the wind direction measured before value or first preparation to blower fan not less than the first wind direction threshold value,
Then the first control determining unit determines that driftage control need not be carried out.
26. equipment according to claim 25, it is characterised in that first control is performed
Unit is used for：
If described wind power generating set is in stopped status, the first control execution unit
Described wind power generating set of control enters holding state, and by described towards determining unit and institute
Operation control unit is stated to carry out navigating to windage yaw in advance；
If described wind power generating set is in running status, the first control execution unit
According to before first preparation to the distance between blower fan and described wind power generating set and from institute
The air speed value measured to blower fan before the first preparation and wind direction value is stated to shift to an earlier date described wind power generating set
Driftage control is performed, so that described wind power generating set is preceding to aerator supervision to first preparation
The wind direction driftage arrived.
27. the equipment according to any one of claim 19~22, it is characterised in that described
Operation control unit includes：
Unit is chosen to blower fan before second preparation, for being selected among other described wind power generating sets
Take the maximum wind power generating set of the wind speed value changes measured from it as the second current preparation it is preceding to
Blower fan；
Second control determining unit, for according to before the forward direction blower fan and first preparation aweather
The wind speed variable condition of machine determines the need for being controlled；
Second control execution unit, if determining to need to carry out for the described second control determining unit
Control, then the second control execution unit is according to the wind measured before second preparation to blower fan
Condition data perform control to described wind power generating set.
28. equipment according to claim 27, it is characterised in that second control is determined
Unit is used for：
If the changing value of the wind speed measured before from second preparation to blower fan exceedes predetermined first
The changing value of wind speed change threshold and the wind speed measured from the forward direction blower fan exceedes predetermined second
Wind speed change threshold, then described second control determining unit to determine that needs are controlled；
If the changing value of the wind speed measured before from second preparation to blower fan is not less than described first
The changing value of wind speed change threshold or the wind speed measured from the forward direction blower fan is not less than described second
Wind speed change threshold, then the second control determining unit determination need not be controlled.
29. equipment according to claim 27, it is characterised in that second control is performed
Unit is used for：
If the air speed value measured before from second preparation to blower fan reaches that predetermined unit cuts out wind
Speed, then it is described second control execution unit according to before second preparation to the position data of blower fan with
And the air speed value measured before second preparation to blower fan prepares to described wind-driven generator
Group performs overspeed protection control；
If the air speed value measured before from second preparation to blower fan is not up to predetermined unit and cut out
Wind speed, then the second control execution unit according to before second preparation to blower fan and described wind
The distance between power generator group and the air speed value measured before second preparation to blower fan and wind
Driftage control and pitch control are performed in advance to described wind power generating set to value.
30. equipment according to claim 27, it is characterised in that second control is performed
Unit is used for：If described wind power generating set is in stopped status, second control is held
Row unit controls described wind power generating set to enter holding state, and according to second preparation before
To the distance between blower fan and described wind power generating set and preceding to blower fan from second preparation
The wind regime data measured are performed navigates to windage yaw.
31. a kind of wind power generating set, it is characterised in that the wind power generating set is included as weighed
Profit requires any one of 16~30 operation control device.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248976.XA CN107304746B (en) | 2016-04-20 | 2016-04-20 | Wind generating set and operation control method and device thereof |
| AU2017254511A AU2017254511B2 (en) | 2016-04-20 | 2017-03-20 | Wind turbine and operational control method and device therefor |
| ES17785283T ES2873748T3 (en) | 2016-04-20 | 2017-03-20 | Wind turbine and operating control method and device for the same |
| KR1020177037649A KR102056531B1 (en) | 2016-04-20 | 2017-03-20 | Wind turbine and driving control method and device for it |
| PCT/CN2017/077316 WO2017181798A1 (en) | 2016-04-20 | 2017-03-20 | Wind turbine and operational control method and device therefor |
| EP17785283.7A EP3296563B1 (en) | 2016-04-20 | 2017-03-20 | Wind turbine and operational control method and device therefor |
| US15/580,126 US10267292B2 (en) | 2016-04-20 | 2017-03-20 | Wind turbine and operational control method and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248976.XA CN107304746B (en) | 2016-04-20 | 2016-04-20 | Wind generating set and operation control method and device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107304746A true CN107304746A (en) | 2017-10-31 |
| CN107304746B CN107304746B (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610248976.XA Active CN107304746B (en) | 2016-04-20 | 2016-04-20 | Wind generating set and operation control method and device thereof |
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| Country | Link |
|---|---|
| US (1) | US10267292B2 (en) |
| EP (1) | EP3296563B1 (en) |
| KR (1) | KR102056531B1 (en) |
| CN (1) | CN107304746B (en) |
| AU (1) | AU2017254511B2 (en) |
| ES (1) | ES2873748T3 (en) |
| WO (1) | WO2017181798A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102056531B1 (en) | 2019-12-16 |
| EP3296563A4 (en) | 2019-01-09 |
| EP3296563B1 (en) | 2021-05-05 |
| CN107304746B (en) | 2020-07-17 |
| AU2017254511A1 (en) | 2017-12-14 |
| ES2873748T3 (en) | 2021-11-03 |
| EP3296563A1 (en) | 2018-03-21 |
| AU2017254511B2 (en) | 2019-03-07 |
| WO2017181798A1 (en) | 2017-10-26 |
| KR20180012826A (en) | 2018-02-06 |
| US10267292B2 (en) | 2019-04-23 |
| US20180298880A1 (en) | 2018-10-18 |
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